EP2754906B1 - Leichtgewichtige Radnaben-Wälzlageranordnung und Verfahren zum Zusammenbau der Anordnung - Google Patents

Leichtgewichtige Radnaben-Wälzlageranordnung und Verfahren zum Zusammenbau der Anordnung Download PDF

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Publication number
EP2754906B1
EP2754906B1 EP14150023.1A EP14150023A EP2754906B1 EP 2754906 B1 EP2754906 B1 EP 2754906B1 EP 14150023 A EP14150023 A EP 14150023A EP 2754906 B1 EP2754906 B1 EP 2754906B1
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EP
European Patent Office
Prior art keywords
axially
hub
inner ring
cylindrical
tubular
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EP14150023.1A
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English (en)
French (fr)
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EP2754906A1 (de
Inventor
Wijbe Buising
Alessandro GARRONE
Cornelius Petrus Antonius Vissers
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SKF AB
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SKF AB
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0005—Hubs with ball bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/10—Drums for externally- or internally-engaging brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0078—Hubs characterised by the fixation of bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0094—Hubs one or more of the bearing races are formed by the hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
    • F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
    • F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
    • F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
    • F16C19/185—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement with two raceways provided integrally on a part other than a race ring, e.g. a shaft or housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
    • F16D1/068—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving gluing, welding or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2310/00—Manufacturing methods
    • B60B2310/30—Manufacturing methods joining
    • B60B2310/318—Manufacturing methods joining by adhesive bonding, e.g. glueing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2360/00—Materials; Physical forms thereof
    • B60B2360/10—Metallic materials
    • B60B2360/102—Steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2360/00—Materials; Physical forms thereof
    • B60B2360/10—Metallic materials
    • B60B2360/104—Aluminum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/10—Reduction of
    • B60B2900/111—Weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2900/00—Purpose of invention
    • B60B2900/10—Reduction of
    • B60B2900/112—Costs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/40—Material joints with adhesive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/50—Positive connections
    • F16C2226/52—Positive connections with plastic deformation, e.g. caulking or staking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/02—Wheel hubs or castors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1316—Structure radially segmented
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1324—Structure carrying friction elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0061—Joining
    • F16D2250/0069—Adhesive bonding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49481—Wheel making
    • Y10T29/49492—Land wheel
    • Y10T29/49533—Hub making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49481—Wheel making
    • Y10T29/49492—Land wheel
    • Y10T29/49533—Hub making
    • Y10T29/49535—Hub making with assembling

Definitions

  • the present invention relates to a lightweight hub bearing assembly for a motor vehicle wheel.
  • the invention also relates to a method of assembling this assembly.
  • hub bearing assemblies having a rotatable flanged ring composed of two different materials, joined together in a single piece, have been proposed in recent years.
  • a tubular core made of a first material having a high toughness, such as bearing grade steel, forms the raceways; a second, lightweight material, such as a lightweight metal, forms the remaining part of the ring, including an outer flange for mounting the wheel.
  • connection between the steel core and the lighter flange is provided by a positive connection. These connections do not always prove to be durable over time, above all after prolonged use. In fact, the different coefficients of thermal expansion of the steel and of the aluminium tend to cause separation of the two materials.
  • connection is made by overmoulding or casting the lightweight material, for example an aluminium alloy, on the tubular steel core. To avoid or limit relative movements between the two materials, in the rings of this type the two materials are joined by interface surfaces having a complex shape, in order to realize undercuts which act like joints between the two materials. See, for example, patent publication WO 2008/147284 A1 . The production costs for the rings realized by this technique are rather high.
  • Document US 2011/235957 A1 discloses a wheel bearing unit having an inner member and an outer member rotationally coupled to each other by at least one row of rolling elements, whereby at least one bearing inner ring is mounted on the inner member.
  • the inner member comprises a first section and a second section that at least party lies radially inward of the first section.
  • the first section is formed from a first material and the second section is formed from a metal material, preferably a lightweight metal such as aluminium.
  • the second section of the inner member is joined to the first section by means of a semi-solid metal process, and to ensure a radial interlock between the first and second sections, the first section comprises a portion extending in a radially inward direction, wherein the portion presents at least one surface that faces away from the bearing axis of rotation.
  • the semi-solid metal of the second section cools, it has a surface against which to radially contract, thereby ensuring a permanent join and long service life of the unit.
  • a wheel hub assembly includes a tubular shaped hub member and a universal joint member connected to the hub member for rotating it about an axis of rotation.
  • the universal joint member fits into the hub member with each having spaced apart confronting surfaces.
  • a filler material is filled into the space between the confronting surfaces and forms a torque transmitting connection between the universal joint member and the hub member.
  • the invention proposes forming a hub bearing assembly having the features defined in Claim 1. According to another aspect, the invention proposes a method of assembly as defined in Claim 6. Preferred embodiments of the invention are defined in the dependent claims.
  • FIG. 1 An example of a hub bearing assembly provided according to the invention is shown in axial cross section in Figure 1 .
  • the assembly comprises a hub 30 made of a lightweight metallic material, preferably of an aluminium alloy, and a bearing unit 20 having a twin row of rolling bodies.
  • the bearing unit comprises an outer ring 21 providing two outer raceways for accommodating a first row 22 and a second row 23 of rolling elements, in this example balls.
  • the bearing unit further comprises a tubular inner ring 24 providing a first, axially outer raceway 25 for the first row 22 of rolling elements.
  • a second inner raceway 26, for the axially inner row 23 of rolling elements, is formed on an inner ring 27 provided separately to the tubular ring 24.
  • the inner ring 27 is provided separately so as to allow the second row 23 of rolling elements to be inserted into the bearing unit after the outer ring 21 has been mounted on the first row 22.
  • the inner ring 27 is mounted on an axial extension 28 of the tubular inner ring 24.
  • An axially inner end of the axial extension 28 is cold-deformed by orbital rolling in a radially outer direction; this provides a plastically deformed rolled edge 29 which axially locks the inner ring 27.
  • the hub bearing assembly defines a central axis of rotation x and is intended for the rotatable mounting of a motor vehicle wheel (not shown) about the axis x.
  • terms and expressions indicating positions and directions for example “radial”, “axial” and “transverse”, are understood as referring to the axis of rotation x.
  • Expressions such as “axially inner” (or “inboard”) and “axially outer” (or “outboard”) refer instead to the mounted state on the vehicle.
  • the hub 30 (shown apart in Figure 3 ) forms, in a single piece of a lightweight metallic material, a cylindrical portion 31 extending in an axial direction, and a flange 32 extending in a radially outer direction from an axially outer end 33 of the cylindrical portion 31.
  • the hub 30 can be formed, for example, by melting or by forging.
  • aluminium alloys which can form the hub include, but are not limited to, the following: 6061 T6, 6082 T6 or T5, A 356 T6, 43500 T6.
  • the hub can be subjected to a thermal cycle, preferably a T6 thermal cycle, which makes it possible to improve the mechanical properties of the aluminium alloy material.
  • the hub can be subjected to a precipitation hardening heat treatment.
  • the flange 32 serves for mounting a wheel of the vehicle.
  • Four/five axial holes 34 can be obtained in the flange at angularly equidistant positions about the axis x.
  • the holes 34 can accommodate a corresponding plurality of fixing elements (not shown), for example screws, for fixing the wheel.
  • the flange 32 provides an axially inner radial surface 35, intended to face towards the vehicle in use, and an axially outer radial face 36, forming a flat bearing surface for a brake rotor (not shown) and/or for the wheel.
  • the hub 30 can also form a tubular axial lug 37, which protrudes from the axially outer side and is suitable for facilitating the centring of the wheel. 38 denotes optional lightening cavities formed in the flange 32.
  • the cylindrical portion 31 provides a radially outer cylindrical surface 39, which is introduced into the tubular inner ring 24, as described hereinbelow.
  • the cylindrical portion 31 has a tubular shape and has, in this example, an axially extending cylindrical inner cavity 40.
  • the inner cavity 40 is continuous.
  • the cavity 40 can be closed.
  • the cylindrical portion 31 can be internally solid, i.e. without the cavity 40.
  • a hub 30 is oriented by arranging the cylindrical portion 31 vertically, with the axially inner end facing upwards ( Figure 4 ).
  • the tubular inner ring 24 forming the raceway 25 for the row of rolling bodies 22 is placed onto the cylindrical portion 31.
  • the tubular inner ring 24 is preferably made of bearing grade steel.
  • the tubular ring 24 provides a radially inner axial cylindrical cavity 42, a radial surface 43 at an axially outer end and the axial extension 28 having an axially inner, initially straight, tubular end 29a.
  • the axial extension 28 has an outer cylindrical surface 44 joined to a radial shoulder 45, which faces in an axially inner direction.
  • the tubular ring 24 is pushed along the cylindrical portion 31 of the hub until the axially outer radial surface 43 is in abutment against the axially inner side 35 of the flange 32.
  • a cylindrical interstice 46 is defined between the outer cylindrical surface 39 of the hub and the axial cylindrical cavity 42 of the tubular ring 24.
  • the radial thickness of the interstice 46 can vary depending on different factors. The embodiment described here, which provides for the introduction of an adhesive material into the interstice 46, has afforded experimental results promoting cylindrical interstices having a radial thickness of the order of about 200 microns. This range is purely indicative; the method can also be carried out with greater radial thicknesses.
  • the cylindrical interstice 46 is preferably closed or sealed at the axially outer end ( Figure 5 ) owing to the contact between the cylindrical cavity 42 of the tubular ring 24 and the outer cylindrical surface 39 of the hub.
  • the cylindrical cavity 42 is formed with an axially outer portion 42a of a diameter such that it requires coupling with radial interference with the outer cylindrical surface 39 of the hub, and a portion 42b axially further in having a diameter slightly greater than the diameter of the portion 42a.
  • the portion 42a axially closer to the flange 32, is coupled with radial interference with a first length 39a, axially further out, of the outer cylindrical surface 39 of the hub; a portion 42b of the cavity 42, axially farther from the flange 32, has an inner diameter greater than the outer diameter of a second length 39b, axially further in, of the outer cylindrical surface 39.
  • This second length 39b radially faces and is spaced from the portion 42b of greater diameter and identifies, with this wider portion 42b, the cylindrical interstice 46.
  • the cylindrical interstice 46 is created by reducing the outer diameter of an axially inner length of the outer cylindrical surface 39 of the tubular portion 31; in an in turn different embodiment, the cylindrical interstice 46 is created in part by reducing the outer diameter of an axially inner length of the outer cylindrical surface 39 of the tubular portion 31 and in part by creating a widened portion 42b in the cavity 42 which radially faces the aforementioned length of reduced outer diameter of the outer cylindrical surface 39.
  • the interstice 46 is open at its axially inner end, facing upwards in the example shown in Figures 4-7 . Therefore, a bonding material is introduced into the interstice 46 around the cylindrical portion 31 of the hub.
  • the bonding material is a structural adhesive introduced into the interstice 46 between the outer cylindrical surface 39 of the tubular portion 31 of the hub and the cylindrical cavity 42 of the tubular ring 24.
  • the steel surface of the cylindrical cavity 42 is not ground, since a certain degree of roughness increases the adherence between the steel and the applied adhesive material.
  • Suitable structural adhesives for the method are in particular curable resins. It is preferable to use an adhesive which can resist operating temperatures of up to 200°C, for example an adhesive based on modified acrylic, polyurethane and epoxy resins which can withstand large mechanical forces, preferably shear stresses of between 15 and 30 MPa.
  • Structural adhesives suitable for the method for joining the steel and the aluminium alloy are, for example:
  • the times and the ways for applying the adhesive such as the levels and gradients of pressure and temperature required for the hardening or curing of the adhesive, depend on the type of adhesive chosen. These procedures are known in the art and do not need to be described in detail here.
  • the adhesive in a preliminary phase the adhesive can be heated so as to allow it to fill the interstice 46 at least partially. Then, it is possible to apply heat and pressure, causing the adhesive to cure so that the cured adhesive material is integrally joined to the outer cylindrical surface 39 of the hub and the axial cylindrical cavity 42 of the first tubular inner ring 24.
  • the inner ring 27 can be mounted with radial interference on the cylindrical surface 44 of the tubular ring 24.
  • the end 29a of the tubular ring 24 protrudes axially, at least in part, beyond a radial surface or terminal face 27a of the inner ring 27 facing in an axially inner direction.
  • the tubular end 29a ( Figure 7 ) is then cold-deformed by orbital rolling in a radially outer direction. This provides the plastically deformed rolled edge 29, which axially locks the inner ring 27 against the shoulder 45 of the tubular ring 24 and axially preloads the entire bearing unit 20.
  • the orbital rolling step is carried out after a number of steps for assembling the bearing unit in which the hub 30 is integrated; these steps which precede the orbital rolling step provide for firstly arranging the row of rolling elements 22 from the axially outer side or outboard side around the tubular ring 24, then for applying the radially outer bearing ring 21, and then for inserting the row of rolling elements 23 from the axially inner side or inboard side, after which it is possible to apply the inner ring 27 and finally carry out the orbital rolling.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Sliding-Contact Bearings (AREA)
  • Wind Motors (AREA)
  • Motor Or Generator Frames (AREA)

Claims (12)

  1. Nabenlageranordnung, umfassend:
    eine Nabe (30), die
    einen zylinderförmigen Abschnitt (31), der in einer Achsenrichtung verläuft und eine zylinderförmige äußere Fläche (39) aufweist, und
    einen Flansch (32), der sich in einer radial nach außen gerichteten Richtung von einem axial äußeren Ende (33) des zylinderförmigen Abschnitts (31) erstreckt,
    einstückig aus einem ersten Metallmaterial bildet;
    eine Lagereinheit (20), die
    einen Außenring (21), der zwei äußere Laufbahnen zur Unterbringung einer ersten, axial äußeren Reihe (22) und einer zweiten, axial inneren Reihe (23) von Wälzelementen bereitstellt,
    einen ersten röhrenförmigen Innenring (24), der aus einem zweiten Metallmaterial besteht und eine erste Laufbahn (25) für die erste Reihe (22) von Wälzelementen und einen inneren, axial verlaufenden zylinderförmigen Hohlraum (42) bereitstellt, und
    einen zweiten Innenring (27), der eine zweite Laufbahn (26) für die zweite Reihe (23) von Wälzelementen bereitstellt, wobei der zweite Innenring (27) an dem ersten röhrenförmigen Innenring (24) fixiert ist,
    umfasst;
    einen ersten zylinderförmigen Zwischenraum (46), der zwischen der äußeren zylinderförmigen Fläche (39) der Nabe und dem axialen zylinderförmigen Hohlraum (42) des ersten röhrenförmigen Innenrings (24) gebildet ist, und
    ein Konstruktionsklebermaterial, das in dem Zwischenraum (46) enthalten ist und einstückig mit der äußeren zylinderförmigen Fläche (39) der Nabe und dem axialen zylinderförmigen Hohlraum (42) des ersten röhrenförmigen Innenrings (24) verbunden ist.
  2. Nabenlageranordnung nach Anspruch 1, wobei der erste röhrenförmige Innenring (24) ferner
    eine radiale Fläche (43) an einem axial äußeren Ende, die axial an dem Flansch (32) der Nabe anliegt;
    eine axiale Verlängerung (28), die sich in einer axial inneren Richtung erstreckt und eine äußere zylinderförmige Fläche (44) bereitstellt;
    eine radiale Schulter (45), die in eine axial innere Richtung gewandt ist und mit der äußeren zylinderförmigen Fläche (44) verbunden ist;
    eine röhrenförmige Endkante (29), die plastisch in einer radial äußeren Richtung gegen eine radiale Fläche (27a) eines axial inneren Endes des zweiten Innenrings (27) verformt ist, um den zweiten Innenring (27) axial an die radiale Schulter (45) zu sperren und die gesamte Lagereinheit (20) axial vorzuspannen,
    bereitstellt.
  3. Nabenlageranordnung nach Anspruch 1 oder 2, wobei der zylinderförmige Zwischenraum (46) an seinem axial äußeren Ende verschlossen oder abgedichtet ist.
  4. Nabenlageranordnung nach Anspruch 3, wobei der zylinderförmige Hohlraum (42)
    einen Abschnitt (42a), der axial näher an dem Flansch (32) liegt und durch einen radialen Passsitz mit einer ersten Länge (39a) der äußeren zylinderförmigen Fläche (39) der Nabe gekoppelt ist, um den zylinderförmigen Zwischenraum (46) an seinem axial äußeren Ende zu verschließen oder abzudichten, und
    einen Abschnitt (42b), der axial weiter von dem Flansch (32) entfernt ist und einen Innendurchmesser aufweist, der größer als ein Außendurchmesser einer zweiten Länge (39b) der äußeren zylinderförmigen Fläche (39) der Nabe ist, wobei sich die zweite Länge (39b) in Bezug auf die erste Länge (39a) axial innen befindet, und die zweite Länge radial zu dem Abschnitt (42b) mit einem größeren Durchmesser gewandt und davon beabstandet ist und mit diesem Abschnitt (42b) mit einem größeren Durchmesser des zylinderförmigen Hohlraums (42) den zylinderförmigen Zwischenraum (46) identifiziert,
    bereitstellt.
  5. Nabenlageranordnung nach einem der vorhergehenden Ansprüche, wobei das erste Metallmaterial eine Aluminiumlegierung ist, und das zweite Metallmaterial ein Lagerstahl ist.
  6. Verfahren zum Zusammenbau einer Nabenlageranordnung, umfassend die folgenden Schritte:
    a1) Bereitstellen einer Nabe (30), die
    einen zylinderförmigen Abschnitt (31), der in einer Achsenrichtung verläuft und eine zylinderförmige äußere Fläche (39) aufweist, und
    einen Flansch (32), der sich in einer radial nach außen gerichteten Richtung von einem axial äußeren Ende (33) des zylinderförmigen Abschnitts (31) erstreckt,
    einstückig aus einem ersten Metallmaterial bildet;
    a2) Bereitstellen eines ersten röhrenförmigen inneren Rings (24), der aus einem zweiten Metallmaterial besteht und eine erste Laufbahn (25) für die erste Reihe (22) von Wälzelementen und einen inneren, axial verlaufenden zylinderförmigen Hohlraum (42) bereitstellt;
    b) derartiges Anordnen des röhrenförmigen Rings (24) um den zylinderförmigen Abschnitt (31) der Nabe, dass zwischen der äußeren zylinderförmigen Fläche (39) der Nabe und dem axialen zylinderförmigen Hohlraum (42) des röhrenförmigen Rings (24) ein zylinderförmiger Zwischenraum (46) definiert wird;
    c) einstückiges Verbinden der Nabe und des röhrenförmigen Rings (24) durch einen Konstruktionskleber, der in dem Zwischenraum (46) enthalten ist.
  7. Verfahren nach Anspruch 6, wobei der Zwischenraum (46) ein axial inneres offenes Ende aufweist und dem Schritt c) der Schritt des Einbringens des Konstruktionsklebermaterial durch das offene Ende in den Zwischenraum vorausgeht.
  8. Verfahren nach Anspruch 6 oder 7, wobei Schritt c) den Schritt des Ausrichtens der Nabe (30) durch derartiges Anordnen des zylinderförmigen Abschnitts (31), dass das axial innere Ende nach oben gewandt ist, umfasst.
  9. Verfahren nach einem der Ansprüche 6 bis 8, wobei der Konstruktionskleber auf einem Polymerharz basiert und Schritt c) den Schritt des Erwärmens des Klebers, so dass er den Zwischenraum (46) zumindest teilweise füllen kann, und dann Zuführen von Wärme und Druck, wodurch der Kleber aushärtet, so dass der gehärtete Kleber einstückig mit der äußeren zylinderförmigen Fläche (39) der Nabe und dem axialen zylinderförmigen Hohlraum (42) des ersten röhrenförmigen Innenrings (24) verbunden wird, umfasst.
  10. Verfahren nach einem der Ansprüche 6 bis 9, wobei Schritt b) den Schritt des Abdichtens eines axial inneren Endes des Zwischenraums (46) durch Koppeln einer axial äußeren Länge (39a) der äußeren zylinderförmigen Fläche (39) der Nabe und eines axial äußeren Abschnitts (42a) des zylinderförmigen Hohlraums (42) durch einen radialen Passsitz umfasst.
  11. Verfahren nach einem der Ansprüche 6 bis 10, wobei dem Schritt b) der Schritt des Vormontierens des ersten röhrenförmigen Innenrings (24) in einer Lagereinheit (20) vorausgeht, wobei die Lagereinheit
    einen Außenring (21), der zwei äußere Laufbahnen zur Unterbringung einer ersten, axial äußeren Reihe (22) und einer zweiten, axial inneren Reihe (23) von Wälzelementen bereitstellt;
    den ersten röhrenförmigen Innenring (24);
    einen zweiten Innenring (27), der eine zweite Laufbahn (26) für die zweite Reihe (23) von Wälzelementen bereitstellt, wobei der zweite Innenring (27) um eine axiale Verlängerung (28), die sich in einer axial inneren Richtung erstreckt, des ersten röhrenförmigen Innenrings (24) herum angebracht ist;
    zwei Reihen (22, 23) von Wälzelementen;
    eine Endkante (29), die durch die röhrenförmige Verlängerung (28) gebildet ist und plastisch in einer radial äußeren Richtung gegen eine radiale Fläche (27a) eines axial inneren Endes des zweiten Innenrings (27) verformt ist,
    umfasst.
  12. Verfahren nach einem der Ansprüche 6 bis 10, wobei auf Schritt c) der Schritt des Montierens des ersten röhrenförmigen Innenrings (24) in einer Lagereinheit (20) folgt, die
    einen Außenring (21), der zwei äußere Laufbahnen zur Unterbringung einer ersten, axial äußeren Reihe (22) und einer zweiten, axial inneren Reihe (23) von Wälzelementen bereitstellt;
    den ersten röhrenförmigen Innenring (24);
    einen zweiten Innenring (27), der eine zweite Laufbahn (26) für die zweite Reihe (23) von Wälzelementen bereitstellt, wobei der zweite Innenring (27) um eine axiale Verlängerung (28), die sich in einer axial inneren Richtung erstreckt, des ersten röhrenförmigen Innenrings (24) herum angebracht ist;
    zwei Reihen (22, 23) von Wälzelementen;
    eine Endkante (29), die durch die röhrenförmige Verlängerung (28) gebildet ist und plastisch in einer radial äußeren Richtung gegen eine radiale Fläche (27a) eines axial inneren Endes des zweiten Innenrings (27) verformt ist,
    umfasst.
EP14150023.1A 2013-01-11 2014-01-02 Leichtgewichtige Radnaben-Wälzlageranordnung und Verfahren zum Zusammenbau der Anordnung Active EP2754906B1 (de)

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ITTO20130024A1 (it) * 2013-01-11 2014-07-12 Skf Ab Gruppo cuscinetto-mozzo di peso leggero e procedimenti per il suo assemblaggio
FR3037528B1 (fr) * 2015-06-18 2017-07-21 Ntn-Snr Roulements Moyeu de palier a roulement integrant une gorge d'ancrage
JP6587851B2 (ja) * 2015-07-16 2019-10-09 Ntn株式会社 車輪用軸受装置
JP6964391B2 (ja) * 2016-03-10 2021-11-10 Ntn株式会社 車輪用軸受装置とその製造方法
JP7330707B2 (ja) * 2019-01-25 2023-08-22 Ntn株式会社 車輪用軸受装置の製造方法

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FR2273974A1 (fr) * 1974-06-05 1976-01-02 Paris & Du Rhone Procede de montage d'un palier dans son support et montage de palier realise par mise en oeuvre de ce procede
DE3017757C2 (de) * 1980-05-09 1982-07-01 Löhr & Bromkamp GmbH, 6050 Offenbach Lagerungsanordnung
NL1006545C2 (nl) * 1997-07-10 1999-01-12 Skf Ind Trading & Dev Gelijmde lagereenheid voor vrachtwagen.
DE10129700A1 (de) * 2001-01-26 2002-08-01 Continental Teves Ag & Co Ohg Wälzlager
JP2002235755A (ja) * 2001-02-13 2002-08-23 Nsk Ltd 転がり軸受
JP2005180681A (ja) * 2003-11-28 2005-07-07 Ntn Corp 車輪用軸受装置
DE102005049454A1 (de) * 2005-10-15 2007-04-19 Schaeffler Kg Lagereinheit, vorzugsweise Radlagereinheit für ein Kraftfahrzeug, sowie Verfahren zur Herstellung einer Lagereinheit
JP2007271048A (ja) * 2006-03-31 2007-10-18 Jtekt Corp 車輪用転がり軸受装置
SE530892C2 (sv) 2007-06-01 2008-10-07 Skf Ab En lagerkomponent för ett rullningslager eller ett glidlager
DE102007052574A1 (de) * 2007-11-03 2009-05-07 Ab Skf Verfahren zum Festlegen eines Lagerrings an oder in einem Bauteil
ITBO20080171A1 (it) * 2008-03-17 2009-09-18 Minganti International Ltd Procedimento per la produzione di mozzi-ruota per veicoli e mozzi-ruota realizzati con tale procedimento.
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DE102010004791A1 (de) * 2010-01-16 2011-09-01 Aktiebolaget Skf Verfahren zum Festlegen eines Lagerrings an oder in einem Bauteil
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CN202641261U (zh) * 2012-05-25 2013-01-02 奇瑞汽车股份有限公司 一种汽车轮毂结构

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